Get rid of warning about undefined variable.
Get rid of warning about undefined variable.

kkleino/AaltoASR,phsmit/AaltoASR,kkleino/AaltoASR,lingsoft/AaltoASR,aalto-speech/AaltoASR,kkleino/AaltoASR,lingsoft/AaltoASR,phsmit/AaltoASR,phsmit/AaltoASR,aalto-speech/AaltoASR,kkleino/AaltoASR,lingsoft/AaltoASR,aalto-speech/AaltoASR,kkleino/AaltoASR,phsmit/AaltoASR,lingsoft/AaltoASR,aalto-speech/AaltoASR,lingsoft/AaltoASR,aalto-speech/AaltoASR